A leading manufacturer of research chemicals, metals and materials including high purity inorganics, organics and organometallics, precious compounds and catalysts, rare earth compounds and metals, labware and more.URL:http://www.alfa.com/en/product/a19936 in English [Translate]

NIST (National Institute of Standards and Technology) supplies industry, academia, government, and other users with over 1300 reference materials of the highest quality and metrological value.
URL:http://www.nist.gov/srm in English [Translate]

Search the largest collection of online suppliers catalogs by specs. Find and contact suppliers, research standards, materials, datasheets, application notes, technical articles, search by part number and more. GlobalSpec - The Engineering Search Engine - helps you research and source faster.URL:http://www.globalspec.com/ProductFinder/FindProducts?query=sanding&se=chem in English [Translate]

Fine Chemical Manufacturer, Laboratory Chemical Manufacturer, Inorganic Compound, Inorganic Salts and Inorganic Acid Manufacturer. We are ISO 9001:2008. We are also ISO 17025 Accredited for our line of UV/Vis Standards.URL:http://www.gfschemicals.com/statics/productdetails/silica_sand_2796.html in English [Translate]